Document Type : Original Article
Authors
1
Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt
2
Central, Agricultural Pesticides Laboratory, Dokki, Giza, Egypt
Abstract
The inorganic salts of copper sulfate, sodium fluoride, sodium chlorate, sodium pyrophosphate and potassium cyanate were tested as bran bait formulation at the rates of 0.125, 0.25, 0.50, 1.0, 2.0 , 4.0, 6.0 and 8.0 % for the control of the small garden snail, Theba pisana (Muller) in the laboratory during 1992 activity season. Copper sulphate showed high mortality percentages (95-100%) at the concentrations 0.5% and 1.0% . The LC50 was 0.2554 and LCgs was 0.4964. Potassium cyanate was the least effective and the concentration 8.0 % produced 45% mortality. Sodium fluoride, sodium chlorate and sodium pyrophosphate produced 93.3 and 100, 91.0 and 100, 88.3 and 100% mortality, respectively, at the concentrations 6.0 and 8.0%. The LC50 and LC95 reached 1.130 and 6.073, 2.404 and 6.456 and 2.325 and 6.834, respectively.
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